BST CERAMICS OBTAINED BY HYDROTHERMALLY ASSISTED COMPLEX POLYMERIZATION METHOD
Аутори
Ćirković, JovanaVojisavljević, Katarina
Vulić, Predrag
Branković, Zorica
Dojčinović, Biljana
Srećković, Tatjana
Branković, Goran
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Barium strontium titanate powder Ba0.8Sr0.2TiO3 (BST) has been obtained by
hydrothermal treatment of precursor solution containing titanium citrate, previously
prepared by complex polymerization method, and barium and strontium acetates.
The powders were calcined at 700 °C, pressed into pellets and further sintered at
1280 °C for a various sintering times (from 1 to 32 h), and structural parameters,
phase composition, dielectric and ferroelectric properties were investigated. Rietveld
refinement analysis of BST ceramics showed that predominant phase was tetragonal
BST with monoclinic Ba6Ti17O40 (B6T17) as a secondary phase. Phase contents
determined by Rietveld refinement match well with the results of energy dispersive
X-ray analysis and ICP analysis. SEM micrographs of sintered samples revealed the
abnormal grain growth where elongated twinned grains of BST grow in a matrix of
smaller B6T17 grains. Dielectric and ferroelectric properties of BST ceramics have
been correlat...ed with density of sintered compacts, phase composition, structural
parameters and microstructure. The sample sintered for 16 h showed the highest
density (93% ρt), as well as the highest value of dielectric constant (~2300) and
remanent polarization – Pr (2 μC/cm2) among investigated samples.
Кључне речи:
Ba0.8Sr0.2TiO3 / hydrothermal treatment / complex polymerization method / dielectric properties / ferroelectric propertiesИзвор:
3rd Conference of The Serbian Society for Ceramic Materials, 2015, 84-84Издавач:
- Institute for Multidisciplinary Research, University of Belgrade
Финансирање / пројекти:
- info:eu-repo/grantAgreement/MESTD/inst-2020/200053/RS//" (RS-MESTD-inst-2020-200053)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Ćirković, Jovana AU - Vojisavljević, Katarina AU - Vulić, Predrag AU - Branković, Zorica AU - Dojčinović, Biljana AU - Srećković, Tatjana AU - Branković, Goran PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2754 AB - Barium strontium titanate powder Ba0.8Sr0.2TiO3 (BST) has been obtained by hydrothermal treatment of precursor solution containing titanium citrate, previously prepared by complex polymerization method, and barium and strontium acetates. The powders were calcined at 700 °C, pressed into pellets and further sintered at 1280 °C for a various sintering times (from 1 to 32 h), and structural parameters, phase composition, dielectric and ferroelectric properties were investigated. Rietveld refinement analysis of BST ceramics showed that predominant phase was tetragonal BST with monoclinic Ba6Ti17O40 (B6T17) as a secondary phase. Phase contents determined by Rietveld refinement match well with the results of energy dispersive X-ray analysis and ICP analysis. SEM micrographs of sintered samples revealed the abnormal grain growth where elongated twinned grains of BST grow in a matrix of smaller B6T17 grains. Dielectric and ferroelectric properties of BST ceramics have been correlated with density of sintered compacts, phase composition, structural parameters and microstructure. The sample sintered for 16 h showed the highest density (93% ρt), as well as the highest value of dielectric constant (~2300) and remanent polarization – Pr (2 μC/cm2) among investigated samples. PB - Institute for Multidisciplinary Research, University of Belgrade C3 - 3rd Conference of The Serbian Society for Ceramic Materials T1 - BST CERAMICS OBTAINED BY HYDROTHERMALLY ASSISTED COMPLEX POLYMERIZATION METHOD EP - 84 SP - 84 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2754 ER -
@conference{ author = "Ćirković, Jovana and Vojisavljević, Katarina and Vulić, Predrag and Branković, Zorica and Dojčinović, Biljana and Srećković, Tatjana and Branković, Goran", year = "2015", abstract = "Barium strontium titanate powder Ba0.8Sr0.2TiO3 (BST) has been obtained by hydrothermal treatment of precursor solution containing titanium citrate, previously prepared by complex polymerization method, and barium and strontium acetates. The powders were calcined at 700 °C, pressed into pellets and further sintered at 1280 °C for a various sintering times (from 1 to 32 h), and structural parameters, phase composition, dielectric and ferroelectric properties were investigated. Rietveld refinement analysis of BST ceramics showed that predominant phase was tetragonal BST with monoclinic Ba6Ti17O40 (B6T17) as a secondary phase. Phase contents determined by Rietveld refinement match well with the results of energy dispersive X-ray analysis and ICP analysis. SEM micrographs of sintered samples revealed the abnormal grain growth where elongated twinned grains of BST grow in a matrix of smaller B6T17 grains. Dielectric and ferroelectric properties of BST ceramics have been correlated with density of sintered compacts, phase composition, structural parameters and microstructure. The sample sintered for 16 h showed the highest density (93% ρt), as well as the highest value of dielectric constant (~2300) and remanent polarization – Pr (2 μC/cm2) among investigated samples.", publisher = "Institute for Multidisciplinary Research, University of Belgrade", journal = "3rd Conference of The Serbian Society for Ceramic Materials", title = "BST CERAMICS OBTAINED BY HYDROTHERMALLY ASSISTED COMPLEX POLYMERIZATION METHOD", pages = "84-84", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2754" }
Ćirković, J., Vojisavljević, K., Vulić, P., Branković, Z., Dojčinović, B., Srećković, T.,& Branković, G.. (2015). BST CERAMICS OBTAINED BY HYDROTHERMALLY ASSISTED COMPLEX POLYMERIZATION METHOD. in 3rd Conference of The Serbian Society for Ceramic Materials Institute for Multidisciplinary Research, University of Belgrade., 84-84. https://hdl.handle.net/21.15107/rcub_rimsi_2754
Ćirković J, Vojisavljević K, Vulić P, Branković Z, Dojčinović B, Srećković T, Branković G. BST CERAMICS OBTAINED BY HYDROTHERMALLY ASSISTED COMPLEX POLYMERIZATION METHOD. in 3rd Conference of The Serbian Society for Ceramic Materials. 2015;:84-84. https://hdl.handle.net/21.15107/rcub_rimsi_2754 .
Ćirković, Jovana, Vojisavljević, Katarina, Vulić, Predrag, Branković, Zorica, Dojčinović, Biljana, Srećković, Tatjana, Branković, Goran, "BST CERAMICS OBTAINED BY HYDROTHERMALLY ASSISTED COMPLEX POLYMERIZATION METHOD" in 3rd Conference of The Serbian Society for Ceramic Materials (2015):84-84, https://hdl.handle.net/21.15107/rcub_rimsi_2754 .